Efficacy of Cervical Sympathetic Blocks for PTSD

The investigators aim to determine whether cervical sympathetic blocks (CSBs) can reduce symptoms of posttraumatic stress disorder (PTSD). If effective, this approach could offer a rapid, legal, and scalable intervention for mental health conditions, in contrast with emerging psychedelic therapies. This research has the potential to transform treatment practices for PTSD and related disorders by providing a controlled, procedure-based option that modulates the autonomic nervous system. In addition to assessing symptom relief, the study will explore physiologic markers of sympathetic modulation, which may help identify objective indicators of treatment success. This could deepen our understanding of the neural mechanisms underlying PTSD and mental health more broadly, with implications for neuroscience, psychology, and clinical care.